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单选题
In MPLS networks, what s the benefit of disabling TTL propagation?（）
A
To provide a visible extension of MPLS TTL functionality in a non MPLS-enabled domain
B
To improve the IGP convergence time
C
To hide visibility to the core (provider) routers in the MPLS network
D
To provide a visible extension of IP TTL functionality in an MPLS-enabled domain
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更多 “单选题In MPLS networks, what s the benefit of disabling TTL propagation?（）A To provide a visible extension of MPLS TTL functionality in a non MPLS-enabled domainB To improve the IGP convergence timeC To hide visibility to the core (provider) routers in the MPLS networkD To provide a visible extension of IP TTL functionality in an MPLS-enabled domain” 相关考题
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Refer to the exhibit, Host A pings interface S0／0 on router 3, what is the TTL value for that ping?()
A. 253B. 252C. 255D. 254
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MPLS标签头部封装中的TTL字段可以防止报文的无限循环转发,哪些TTL的描述是正确的()。
A.只有在帧模式的MPLS封装中才有TTL，在信元模式的MPLS封装中没有TTLB.MPLS对于TTL的处理有两种方式。一种是IP报文在进入MPLS网络的时候MPLS头部的TTL拷贝IPTTL值；另外一种是在入口LER将MPLS头部的TTL统一设置为255C.拷贝IPTTL值的处理方式隐藏了MPLS域的LSR，起到了一定的安全的作用D.禁止了拷贝TTL的情况下，tracert能看到经过的MPLS域的LSR
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MPLS也有环路检测的方法,对MPLS的环路检测的说法正确的是()。
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In MPLS networks, what s the benefit of disabling TTL propagation?（）A、To provide a visible extension of MPLS TTL functionality in a non MPLS-enabled domainB、To improve the IGP convergence timeC、To hide visibility to the core (provider) routers in the MPLS networkD、To provide a visible extension of IP TTL functionality in an MPLS-enabled domain
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MPLS对TTL的处理有两种方法，其中一种是把整个MPLS域看做一跳，如果一个TTL为10的IP报文通过三台路由器所组成的MPLS域时，它的TTL会减为（）。A、7B、8C、9D、10
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考题
Which statement correctly describes the disabling of IP TTL propagation in an MPLS network？（）A、The TTL field from the IP packet is copied into the TTL field of the MPLS label header at the ingress edge LSRB、TTL propagation cannot be disabled in an MPLS domainC、TTL propagation is only disabled on the ingress edge LSRD、The TTL field of the MPLS label header is set to 255E、The TTL field of the IP packet is set to 0
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考题
单选题Which statement correctly describes the disabling of IP TTL propagation in an MPLS network？（）A
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TTL propagation cannot be disabled in an MPLS domainC
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